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The Boat Galley

making boat life better

 

Batteries & Charging Them
Boat Batteries
& Charging Them
Image is not available

Having enough power on a boat is a combination of battery choice, monitoring, maintenance and charging.
 
Learn how not to have any amp-ogres aboard!

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More From Your Solar Panels

Published on September 21, 2026; last updated on September 21, 2026 by Carolyn Shearlock

Six strategies to get more from solar panels on a boat. None are hard to implement and can provide 10% or more extra charging power each day.

We got 90% of our power from solar. Here are a few simple adjustments to help you get the most from your solar panels, even on cloudy days.

How Much Solar Power Do You Need?

Published on August 3, 2026; last updated on August 3, 2026 by Carolyn Shearlock

Why it’s impossible for a solar power estimator to tell you precisely how much solar power you need. 14 things that may be different in the real world.

Choosing and Installing a Victron Battery Monitor

Published on July 20, 2026; last updated on July 20, 2026 by Carolyn Shearlock

Step-by-step instructions with pictures to install a Victron battery monitor, including reasons for having a battery monitor and why we chose this one.

Having Enough Power on a Boat

Published on July 16, 2026; last updated on July 16, 2026 by Carolyn Shearlock

Our four-step approach to power on our boat means that we have electricity for everything we want.

Charging Boat Batteries With a Portable Generator

Published on March 19, 2026; last updated on March 22, 2026 by Carolyn Shearlock

Honda EU2200i portable generator on a sailboat deck used for charging boat batteries with a generator

Running low on power at anchor? Here’s how to charge your boat batteries with a portable generator — fast and safely.

Troubleshooting Boat Refrigeration – Is it Your Batteries?

Published on April 10, 2025; last updated on January 2, 2026 by Carolyn Shearlock

Temperature gauge with 48.7 showing - troubleshooting boat refrigeration

When troubleshooting boat refrigerations you might want to look at your batteries first. Tips for when your fridge runs but the beer is warm.

Inverters on a Boat: What They Do and What You Need to Know

Published on October 3, 2024; last updated on March 25, 2026 by Carolyn Shearlock

110V household plug next to 12V cigarette lighter outlet showing why boats need an inverter

An inverter turns your boat’s 12V battery power into regular household current. Here’s what every boater needs to know.

🎧Deciding on Lithiums

Published on July 21, 2020; last updated on May 17, 2023 by Nica Waters

A brief overview of boat energy systems and how we settled on lithium batteries.

Boat Battery Types 101

Published on January 20, 2020; last updated on January 2, 2026 by Cory Nickerson

Learn about the different types of boat batteries and figure out which ones are best for you!

PowerMax: Customer Service Above and Beyond

Published on April 24, 2019; last updated on January 29, 2023 by Carolyn Shearlock

PowerMax chargers are solid chargers at an affordable “non-marine\” price. When I recently had a problem with ours, their customer service blew me away!

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